Hebei Osman Preservation Technology Co., Ltd. is the first technology enterprise in China specializing in the research and development of preservation technology of agricultural products, the manufacture of modified atmosphere preservation equipment and the construction of modified atmosphere cooling chain project. It is an excellent complete set of solutions for the whole process cold chain preservation technology of agricultural products. Focusing on the R & D and production of controlled atmosphere equipment, the company has successively developed the latest generation of controlled atmosphere equipment, frequency conversion deoxidizer, intelligent controlled atmosphere integral machine and grape mildew proof machine with technical level, and developed an integrated refrigeration machine with automatic preservation navigation function, integrating preservation technology with preservation equipment to simplify preservation technology. At the same time, according to the characteristics of different fruits and vegetables and customer requirements, optimize and design the structure of the warehouse, develop modular micro fresh-keeping warehouse, portable inflatable cold storage and constant temperature and humidity phase temperature and controlled atmosphere warehouse, which are widely used in the fresh-keeping of various fruits and vegetables, flowers, food, biological products and fine chemical products. At the same time, micro controlled atmosphere experimental systems such as controlled atmosphere experimental box and controlled atmosphere display cabinet, It provides strong technical support for the research of fresh-keeping technology in Colleges and universities and scientific research institutes. Develop modified atmosphere preservation technologies for Hongti grape, Yao Xuehua pear, Yunnan pomegranate, Hainan areca, Xinjiang white apricot, Ningxia long jujube, Guanxi honey pomelo, Kiwi fruit, Dendrobium candidum, cherizi, durian, mango, northeast oil bean, rice, small cereals and other agricultural products. In recent years, the company has completed the construction of many large-scale modified atmosphere warehouses and cold storage projects in China, The total storage capacity of fruits and vegetables exceeds 300000 tons 1. Frequency conversion deoxidizer stable and reliable: The main accessories are international high-quality well-known brands, follow the international advanced design concept, systematic integration, optimize the configuration of multi-channel protection, and greatly improve the stability of the system.

High efficiency and energy saving: Special process design, professional customized high-efficiency adsorption filler; Intelligent frequency conversion technology (the manufacture of the first fully automatic intelligent frequency conversion deoxidizer in China), according to the different oxygen content and output frequency in the warehouse, makes the host always operate under the optimal working condition, greatly improves the efficiency of the equipment, and saves more than 40% energy compared with other types of oxygen reduction and nitrogen production equipment. Compact structure: The elution tank, control valve, vacuum pump, gas ring fan and automatic control system are systematized together to fully save the use area.

Simple operation: PLC automatic control, man-machine interface in Chinese and English display, intuitive display of equipment operation status, parameter setting, fault alarm and other menus. 2. Carbon dioxide remover stable and reliable: The main accessories are international high-quality well-known brands, follow the international advanced design concept, systematic integration, optimize the configuration of multi-channel protection, and greatly improve the stability of the system.

High efficiency and energy saving: The adsorbent with unique microporous structure is professionally customized, and the removal efficiency is 30% higher than that of ordinary